<template>
    <div class="login-container">
        <el-form ref="formRef" :model="loginForm" :rules="loginRules" class="login-form" auto-complete="on" label-position="left">
            <div class="title-container">
                <h3 class="title">尚品汇后台管理</h3>
            </div>

            <el-form-item prop="username">
                <span class="svg-container">
                    <svg-icon name="ele-UserFilled" />
                </span>
                <el-input ref="username" v-model="loginForm.username" placeholder="Username" name="username" type="text" tabindex="1" auto-complete="on" />
            </el-form-item>

            <el-form-item prop="password">
                <span class="svg-container">
                    <svg-icon name="ele-Lock" />
                </span>
                <el-input
                    :key="passwordType"
                    ref="passwordRef"
                    v-model="loginForm.password"
                    :type="passwordType"
                    placeholder="Password"
                    name="password"
                    tabindex="2"
                    auto-complete="on"
                    @keyup.enter.native="handleLogin"
                />
                <span class="show-pwd" @click="showPwd">
                    <svg-icon :name="passwordType === 'password' ? 'ele-Hide' : 'ele-View'" />
                </span>
            </el-form-item>

            <el-button :loading="loading" type="primary" style="width: 100%; margin-bottom: 30px; height: 40px" @click.native.prevent="handleLogin">登 陆</el-button>
        </el-form>
    </div>
</template>

<script lang="ts">
export default {
    name: "Login",
};
</script>

<script lang="ts" setup>
import { useUserInfoStore } from "@/stores/userInfo";
import type { FormInstance } from "element-plus";
import { nextTick, ref, watch } from "vue";
import { useRoute, useRouter } from "vue-router";

const userInfoStore = useUserInfoStore();
const route = useRoute();
const router = useRouter();
const loginForm = ref({
    username: "admin",
    password: "111111",
});
const loading = ref(false);
const passwordType = ref("password");
const redirect = ref("");
const passwordRef = ref<HTMLInputElement>();
const formRef = ref<FormInstance>();

const validateUsername = (rule: any, value: any, callback: any) => {
    if (value.length < 4) {
        callback(new Error("用户名长度不能小于4位"));
    } else {
        callback();
    }
};
const validatePassword = (rule: any, value: any, callback: any) => {
    if (value.length < 6) {
        callback(new Error("密码长度不能小于6位"));
    } else {
        callback();
    }
};

const loginRules = {
    username: [{ required: true, validator: validateUsername }],
    password: [{ required: true, trigger: "blur", validator: validatePassword }],
};

watch(
    route,
    () => {
        redirect.value = route.query && (route.query.redirect as string);
    },
    { immediate: true },
);

/*
切换密码的显示/隐藏
*/
const showPwd = () => {
    if (passwordType.value === "password") {
        passwordType.value = "text";
    } else {
        passwordType.value = "password";
    }
    nextTick(() => {
        passwordRef.value?.focus();
    });
};

/*
点击登陆的回调
*/
const handleLogin = async () => {
    await formRef.value?.validate();
    loading.value = true;
    const { username, password } = loginForm.value;
    try {
        await userInfoStore.login(username, password);
        router.push({ path: redirect.value || "/" });
    } finally {
        loading.value = false;
    }
};
</script>

<style lang="scss">
/* 修复input 背景不协调 和光标变色 */
/* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */

$bg: #283443;
$light_gray: #fff;
$cursor: #fff;

@supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
    .login-container .el-input input {
        color: $cursor;
    }
}

/* reset element-ui css */
.login-container {
    background-image: url(../../assets/bg1.heic);
    background-color: #2d3a4b;
    background-size: cover;

    .el-input {
        display: inline-block;
        height: 47px;
        width: 85%;

        .el-input__wrapper {
            width: 100%;
            background-color: transparent;
            box-shadow: none;

            input {
                background: transparent;
                border: 0px;
                -webkit-appearance: none;
                border-radius: 0px;
                padding: 12px 5px 12px 15px;
                color: $light_gray;
                height: 47px;
                caret-color: $cursor;

                &:-webkit-autofill {
                    box-shadow: 0 0 0px 1000px $bg inset !important;
                    -webkit-text-fill-color: $cursor !important;
                }
            }
        }
    }

    .el-form-item {
        border: 1px solid rgba(255, 255, 255, 0.1);
        background: rgba(0, 0, 0, 0.1);
        border-radius: 5px;
        color: #454545;
    }
}
</style>

<style lang="scss" scoped>
$bg: #2d3a4b;
$dark_gray: #889aa4;
$light_gray: #eee;

.login-container {
    min-height: 100%;
    width: 100%;
    background-color: $bg;
    overflow: hidden;

    .login-form {
        position: relative;
        width: 520px;
        max-width: 100%;
        padding: 160px 35px 0;
        margin: 0 auto;
        overflow: hidden;
    }

    .tips {
        font-size: 14px;
        color: #fff;
        margin-bottom: 10px;

        span {
            &:first-of-type {
                margin-right: 16px;
            }
        }
    }

    .svg-container {
        padding: 6px 5px 6px 15px;
        color: $dark_gray;
        vertical-align: middle;
        width: 30px;
        display: inline-block;
    }

    .title-container {
        position: relative;

        .title {
            font-size: 26px;
            color: $light_gray;
            margin: 0px auto 40px auto;
            text-align: center;
            font-weight: bold;
        }
    }

    .show-pwd {
        position: absolute;
        right: 10px;
        top: 10px;
        font-size: 16px;
        color: $dark_gray;
        cursor: pointer;
        user-select: none;
    }
}
</style>
